Improvement in pumping-engines



2 Sheets-Sheet 1. F. W. KOTTGEN. PUMPING-ENGIN-E.

No.178,163. Patented May 30,1876.

' reciprocating motion.

'UNrTnn STATES PATENT OFFICE.

rninnnron w. KoTTenN, or BARMEN, rnUssrA.

` IMPROVEMENT IN PUMPlNG-ENGINES.

Specification forming part of Letters Patent No. 178,163, dated May 30, 1876; application tiled April 22, 1876.

To all whom t may concern:

Be it known that I, F. W. KTTGEN, of Barmen, Kingdom ot' Prussia, have invented an Improved Pumping-Engine, of which the` following is a specification:

This invention relates to an arrangement of pumpingengines by which certain important advantages are attained over the constructions at present in use.

The engine is arranged with two cylinders, A A', properly supported on beams and columns. Below the cylinders is placed a crankshaft, B, with a ywheel, D, the connection between the piston-rods and the cranks, as well as the arrangement ot' the guides, being similar to that of the engines called inverted-cylinder engines." The two cranks, however, are not placed at an angle of ninety degrees to each other, as usual, but in opposite directions-11.6., at an angle of one hundred and eighty degrees, so as thereby to balance the two sets of pump-rods and other parts in The piston-rods E E' pass through the tops of the cylinders, and the upper end of each ofV them is attached to the end of an oscillating beam in the usual style of beam-engines. The two beams F F', however, converge toward each other, so that their extreme ends, to which the pump-rods G G' are attached, are brought close together over the shaft of the mine, or, in general, over the two sets of pumps.

The arrangement of the steam-valves, the valve-gearing, condensers, &c., may be made in any desired manner, and, instead of two single cylinders, any convenient combination of high and low pressure cylinders may be adopted; also, the arrangement of the engines may be inverted, so as to have the crankshaft above and the beams below.

The cylinders are placed at such a distance from each other as to secure a proper length of shaft between its two bearings, and a tlywheel is fixed on the center ot' the shaft.

The two cranks being placed opposite to each other, as stated, it is necessary to cast the ily-wheel with teeth on its rim, and to arrange a lever with a pawl, (which may beA moved by a small steam-engine,) for the purpose ot' turning 4the cranks over the dead-center before starting the engine, in case it should have stopped at this point.

The angular position of the two wroughtiron beams will be seen from the elevation, Figure 1, as well as from the ground plan, Fig.r2, while Fig. 3 shows the crank-shaft, &c.,in plan.

The weight of the pump-rods and appendages I prefer to calculate so that it materially overbalances the head of'rwater acting on the plungers, so as to havel a constant tensive strain on the moving parts of the enas well as the momenta ot' the same, are` completely balanced, the engine may run at a much higher speed, and it may make a greater number of strokes, in comparison to former constructions, without rotative motion, as well as to the more recent pumpingengines with fly-wheels. Third, the engine presents all the advantages of the underground pnmping-engines, while the disadvantages ofthe latter, especially their liability to be swamped by an accidental rise of water in the mine, are' removed.

I claim as my invention l. In a pumping-engine, the combination of the beams F F', operating the pumps, with the piston-rods E E', cylinders A A', crankshaft B, and intermediate ily-wheel D, all arranged substantially in the manner described. 2. In a pumping-engine, the combination of the piston-rods and pump-rods with the beams F F', arranged at an angle in respect to each other, as set forth.

In testimony whereof` I have signed my name to this specification in the presence of two subscribing witnesses.

FRIEDRICH WILHELM KOTTGEN.

Witnesses:

ARNOLD DIERGAIST, FERTZIG HARDT. 

